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The Generac 3100 psi (gas - cold water) pressure washer is available for purchase today.

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Generac 3100 PSI (Gas - Cold Water) Pressure Washer

(Based on expert analysis, manufacturer ratings and customer reviews)

4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
168 Reviews
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$399.00
$359.10
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  • Features
  • Specs
  • 11
    Q&A 
  • 168
    Reviews
  • Articles
  • Shipping
  • Accessories

Grade
Style
Water Pressure
3100
PSI
Water Flow
2.7
GPM
Cleaning Speed
8370
Cleaning Units
Engine
Generac
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Powerful Generac 5.5 HP Horizontal Shaft OHV Engine
Easily handles most tasks around the house

High Performance AR Axial Cam Pump
Brass head is more durable than all-aluminum pumps
Easily accessible- no more kneeling to connect hoses

Handy, Manuverable Cart With Spray Gun Holster
Engine & pump are perfectly balanced & easy to move
Large Never-Flat wheels take on varied terrain

Ergonomic Generac Spray Gun With 20" Lance
Soft grip & easy-pull inverted fulcrum trigger reduces fatigue

5 Quick-Click™ Nozzle Tips & 30' M22 Hose
0°, 15°, 25°, 40°, and soap applicator

Two 3/4 Gallon On-Board Detergent Tanks
Keep 2 detergents handy- wash & wax, cleaner & grease cutter, etc

Stabilizing Foot Rest
Holds the unit steady for smoother pull-starting

2 Year Limited Warranty
Protects your investment

Not For Sale In California
Doesn't meet strict CARB emissions standards



Model
  Model Number:6598
 UPC:696471065985
 Manufacturer:Generac
Engine
 Engine Brand:Generac
 Starter:Recoil
 HP/CC5.5 HP/212 cc
 Fuel Tank Size3.2 quarts
Pump
 Pump Brand:AR
 Pump Type:Axial Cam
 Adjustable Pressure:No
 Chemical Injection:Dual Detergent Tank
 Detergent Tank Capacity:.75 gal x2
Housing
 Frame Type:2-Wheel Cart
 Wheels:NeverFlat
Hose
 Hose Storage:Hook
 Hose Length:30 ft
 Hose Material:PVC/Plastic
 Hose Diameter:1/4 Inch
 Hose Connections:M22
Spray Gun
 Spray Gun Connection:M22
 Spray Gun Grade:Residential gallons
 Spray Gun Wand:Single Wand
 Spray Tips:Quick Connect Tips (5)
 Turbo Nozzle:Sold Separately
Overview
 Weight:67.5 Lbs.
 Dimensions:23.3L x 16W x 40.3H
 Mfr Consumer Warranty:2 Years

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  11 Questions
Q: Is there a comparable model that you would recommend over this model?
by Keith Shannon from Maryland on May 26, 2015

A: The unit that is equal in quality, is the Karcher unit model G3050OHC. Karcher makes the pump on the unit and it is one of the best consumer grade units in the industry today. I have attached a link to view that item.

Karcher Unit
by Mike, Product Expert
Q: Is there an extension hose available for this model? What hose would you suggest if I go with a
longer hose instead of the extension hose?

by Steve Lohman from Missouri on April 24, 2015

A: If you need to go with a longer high pressure hose, I would recommend jumping up to a 5/16" diameter hose and using it as a replacement. To extend the length, you would want a stronger more durable hose like the 5/16" hoses. I have attached a link for you to view a 50FT high pressure hose I would recommend for this unit.

50FT High Pressure Hose
by Mike, Product Expert
Q: What is a flywheel brake and what is the purpose of it? does the generac have this brake and the Honda ? I had a Honda washer with a brake on it and I had a lot of different problems with it so im very cautions of buying another
by John T from Florida on September 13, 2014

A: No, this unit does not have a flywheel brake on it. The purpose of that is to control the engine speed. This unit is a great choice for homeowner use. I highly recommend this unit. The pump on the unit is made from AR, and is one of the best axial cam pumps in the industry today.
by Mike, Product Expert
Q: I have a 3100psi Generac model 60242 I purchased from PED. Works great. I have noticed lately that when I tilt the unit back in order to reposition it, it will suddenly quit. Is this the "Oil Alert System" sensing a drop in oil level and shutting down the engine? The unit restarts after a couple of pulls.
by Dave from North Carolina on June 05, 2014

A: It could be the Oil Alert sensor, or an adjustment needed in the carburetor... The good news is this unit comes with a 2 year Factory Warranty from the folks at Generac.

You can use their Service Center Locator to find your local Authorized Repair facilities, or give them a call at (888) 436-3722 x5381.

Please be sure to have the serial number of your pressure washer handy if you call Generac; they usually ask for it. You will need a copy of your invoice for any warranty work- just click on My Account in the upper right corner of our website and follow the prompts to print one out.

If there are several repair locations in your area you may want to call around to see which one has the shortest turn-around time so you get your pressure washer back as quickly as possible.
by Mike, Product Expert
Q: Hi...I see the site sells extended warranties. Who covers these, and what's covered. Also, is it worth it to go beyond the two year Generac offers.
by Brian Warehime from New York on May 29, 2014

A: The Extended warranty is covered by WarrenTech. They will start the day after the manufacture warranty and cover all non wearable items. Things that would not be covered would be items like the hose, gun, wand. They would have you take it to a local service center. I feel the Generac Warranty is great. However, if you would like extra time after that it is available for purchase.
by Mike, Product Expert
Q: I am looking for recommendation on accessories needed for the Generac 6598 to easily clean siding and gutters on a large 2 story house.
Thanks.

by Jared from Florida on May 08, 2014

A: I definitely recommend a telescoping wand and gutter cleaner attachment for your application. If you would like to spray detergent through the telescoping wand you will need to go with an aluminum one. I have included link to the telescoping wand, gutter cleaner, adapter needed to attach to your high pressure hose, and the detergent I recommend.

Telescoping Wand

Gutter Cleaner attachment

Adapter

Detergent
by Mike, Product Expert
Q: I'm buying a generac gas model# 6598 from you guys and am looking at MTM hydrojet turbonozzle to go with it.What size orifice should I get? We have a two story home (30' to gable ends) will MTM Hydro long-range detergent foamer work?
by Bruce E Lawrence from Maine on April 17, 2014

A: You should get a 3.0 Orifice Turbo Nozzle. Turbo Nozzles are meant to increase cleaning speed and efficiency, not for long distances. I have attached a link for you.

3.0 Orifice Turbo Nozzle

For your two story home and gables I would go with model 100145. This product allows you to reach up to 3 stories high. I have included a link to this as well.

Model 100145

Both of these product will quick connect on to the end of your lance where the colored spray tips usually go.
by Mike, Product Expert
Q: Will the Generac 6598 connect to a foam cannon like the MTM Hydro without needing any additional hardware?
by Doug from Rhode Island on April 15, 2014

A: Yes, you can purchase the MTM foamer model 14.0263. This has a fitting on it so that it quick connects into where your colored spray tips usually go, so no additional hardware is needed. I love this foamer!

MTM Foamer
by Mike, Product Expert
Q: What is the pump made out of?
by Zach from Minnesota on April 14, 2014

A: This unit has an AR axial cam pump with a brass head on it. It is a step above the rest in it's category. The brass head dissipates heat more effectively, therefore increasing the life of the pump.
by Mike, Product Expert
Q: Is there a telescoping spray wand available for the
Generac Model 6598?

by Carmen Fontana from Delaware on April 13, 2014

A: Yes, if you would like to be able to dispense detergent I recommend the 24' Aluminum Telescoping Wand. I have also included the adapter you will need to connect this product to your high pressure hose.


24' Aluminum Telescoping Wand

Adapter
by Mike, Product Expert
Q: If you go to Lowes, they still carry the model 6024. You show that model as being disconntinued. The 6598 seems to match up with the 6024, spec for spec. Is there any difference? Why wouldn't Lowes carry the 6598?
by Mark from Connecticut on March 19, 2014

A: The 6024 is the old model number. The new model number is the 6598. It has all the same components as the 6024, just different colors to make it more appealing.
by Mike, Product Expert
Generac 6598 Reviews & Ratings
Write Review
Overall Rating
Features
5/5
Quality
4/5
Performance
5/5
Value
5/5
Overall
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
Pros
Easy To Use (53)
I'd Buy It Again (34)
Price (31)
Easy To Store (21)
Exceeded Expectations (21)
Cons
Low Quality (7)
Bad Instructions (5)
Durability (4)
None (3)
Unreliable (3)
93% of respondents would recommend this product to a friend
168 Reviews  Sort by 
 
Mike, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
120 Reviews
Total Helpful Votes
3825 Helpful Votes
Pressure Washers Direct Recommended

Given the oversized 212cc Generac brand engine and the durable AR brand axial cam pump, this model is great choice for any homeowner looking to purchase a very good quality pressure washer without putting a large hole in their wallet.

The frame on this unit, like all of the other Generac pressure washers, is a very well thought out design with the consumer in mind. It's balanced and easy to maneuver with 2 easily accessible detergent tanks at the bottom. This model has a vertical frame... more
Mike Recommends This Model
Was this review helpful?
34243
John C.
Morganton, NC
Purchased from Pressure Washers Direct
Purchased 4/4/15
Total Helpful Votes
15 Helpful Votes
Most Helpful Positive Review
REVIEWED
APR.
09
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Prior Reviews Predict Your Experience
Very fast shipping. My Generac 6598 came in 4 days. I ordered a Surface Cleaner the same day and I have no idea what the status is, but I am waiting on it. I ordered the ultimate quick connect today. I highly recommend getting these two accessories.

I used my pressure washer for the past two days and I will give you my experience so far.

Set up was easy but my gas cap, like other reviewers, came broken. Luckily, the gas cap has a metal cap that is molded into a plastic outer... more
Pros: Easy To Use, I'd Buy It Again, Price, Easy To Store
Cons: Packaging, Needs Protection On The Top Of The Box
John Recommends This Generac Product
Mike, the Pressure Washer Expert
Product Expert
John,
Thank you so much for sharing such a great review. This kind of feedback is extremely helpful to other shoppers, and we all really appreciate you taking the time to write it.

Best wishes, and have a great spring.
more
Manufacturer Response
Brand Rep
John,
Thank you for providing us with your highly-detailed review. Your input not only helps future shoppers, but also allows us to review our products and make adjustments and/or changes where we can. We appreciated your constructive feedback, and would like to encourage you to contact us directly at 888-GENERAC (436-3722) if there is something that we can help you with in the future.
more
Was this review helpful?
154
Mike S.
Marietta, GA
Total Helpful Votes
14 Helpful Votes
Most Helpful Critical Review
REVIEWED
JUL.
19
2014
3 out of 53 out of 53 out of 53 out of 53 out of 5
Would Not Buy Again
The order was on time and easy to put together, but blow hi pressure line within 20 mins. I put hose from my old Troybilt and worked great for 3 hrs. Then pump stopped working.

It's in shop now should have back by August.
Pros: Hi Pressure Line Brust The First Time I Used Ite
Cons: Unreliable, Durability, Used Unit 2 Times But Will Not Put Out Ptresse Its In Shop
Was this review helpful?
141
John H.
Sedro Woolley, WA
Purchased from Pressure Washers Direct
Purchased 6/1/15
REVIEWED
JUN.
23
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Works Great
This machine has a lot of power. Easy to start. I would recommend that the liquid tanks be easily removable to drain them. The machine seems to shake a lot when pumping. Perhaps better dampeners on the pump and motor mounts.
John Recommends This Generac Product
Manufacturer Response
Brand Rep
John,
Thank you for providing us with your review. Please know that the unit's detergent tank is screwed into the product's body. If you would like to drain the detergent tank, we would recommend utilizing an automatic style siphon to remove any remaining detergent after use. Moreover, when used appropriately on a level surface, the unit should not be shaking significantly. If you believe that your unit is currently experiencing issues, we would recommend contacting an independent authorized service provider in your local area for any required diagnostic work. To locate an independent authorized service provider closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locator?cid=frm-105-ab . Moreover, if you would like to discuss any particular issues with us in detail, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
more
Was this review helpful?
20
Randall N.
Austin, TX
Purchased from Pressure Washers Direct
Purchased 5/28/15
REVIEWED
JUL.
04
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Pleased To Date!
I have had my Generac 3100 PSI Model 6598 for 5-6 weeks and have done 3 or 4 jobs and have been extremely pleased so far. Starts/Runs great and the pressure is incredible. Handle easily removed for transport.
Randall Recommends This Generac Product
Manufacturer Response
Brand Rep
Randall,
Thank you for providing us with your review of the 3100 psi residential grade pressure washer. We truly value your positive feedback. To be sure that your unit's warranty is properly initiated, please register your unit with Generac Nation via the following link: http://www.generac.com/generac-nation-sign-up?cid=frm-105-aa . Should you require assistance with the registration process, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
more
Was this review helpful?
10
Ed D.
Erie, PA
Purchased from Pressure Washers Direct
Purchased 5/29/15
REVIEWED
JUN.
24
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Nice Washer
Nice pressure washer, compact, powerful. The only cons are the wimpy hose hanger and the oil dipstick. Engine oil is top priority and the dipstick is vague on oil level...otherwise quite satisfied.
Ed Recommends This Generac Product
Manufacturer Response
Brand Rep
Ed,
Thank you for providing us with your feedback. If you are having issues ascertaining the unit's oil level by using the associated dipstick, we would recommend referring to the section provided in your unit's owner's manual that is entitled "Add Engine Oil". This section provides a depiction of the threaded indicator marks that appear on the unit's dipstick, along with the "High" and "Low" indicators. If you do not have access to your product's documentation, please know that it can be obtained online by using your product's model or serial number for searching purposes via the following link: http://www.generac.com/service-support/product-support-lookup?cid=frm-105-ac . If you are still having issues with this particular part after referring to this documentation, please do not hesitate to contact us directly at 888-GENERAC (436-3722) for further assistance.
more
Was this review helpful?
10
Deborah K.
La Marque, TX
Purchased from Pressure Washers Direct
Purchased 5/20/15
REVIEWED
JUN.
22
2015
1 out of 51 out of 51 out of 51 out of 51 out of 5
Already Broken
Bought this pressure washer 5/20/2015. Got it out of the box in which it was shipped 6/18/2015. Used it for two days, worked great. On third day, started vibrating excessively, and leaking oil. Took it to the nearest authorized service center for warranty work. They were reluctant to take it, but finally did. Am waiting to find out what is wrong with it and what they will do to fix it, if in fact they will. Don't know why the, " authorized service center doesn't want to perform the... more
Mike, the Pressure Washer Expert
Product Expert
Deborah,
I understand your concern and apologize for the service center acting the way they did. With that being said, I am glad they are taking a look at the unit for you . You are our customer so keep us informed on what the issue was and contact us directly if you are unsatisfied with their conclusion on what happened. We can be reached at 800-710-7499. Thanks
more
Manufacturer Response
Brand Rep
Deborah,
We are sorry about the issues that you have experienced with your unit. We are glad to learn, however, that you have taken it to an independent authorized service provider for servicing purposes; these trained professionals will be able to provide any applicable warranty coverage. If you would like to discuss your experience with us in further detail, please do not hesitate to contact us directly at 888-GENERAC (436-3722). We do apologize for any inconvenience that these issues may have caused.
more
Was this review helpful?
10
Sean H.
Knoxville, TN
Purchased from Pressure Washers Direct
Purchased 6/10/15
REVIEWED
JUL.
02
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
This Is The One
Research for a week and looked at all the local stores and went to the web for reviews and found preeurewasherdirect.com and the rest was history. I ordered on Wednesday and the washer was at my house on Friday afternoon. Easy set up and I was using it by 6 pm on the sidewalks. Works great and great no hassle site. Would and will use them again.
Sean Recommends This Generac Product
Was this review helpful?
00
Mario C.
New Port Richey, FL
Purchased from Pressure Washers Direct
Purchased 6/8/15
REVIEWED
JUL.
01
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Machine
Good machine for the price, excellent for home use, and light pro use. This is my second and I love it.
Pros: Easy To Use, I'd Buy It Again, Price, Exceeded Expectations
Cons: Loud
Mario Recommends This Generac Product
Was this review helpful?
00
Robert H.
Orem, UT
Purchased from Pressure Washers Direct
Purchased 4/24/15
REVIEWED
JUN.
30
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Great Machine, Lousy Pressure Hose
Machine arrived in good shape. Put together and used to power wash fence we were going to repaint. With green nozzle did a good job of removing flaking paint. Took two days to complete. Went out third day to power wash a deck and found that the pressure hose had split. Not what I expected from a first class power washer. Very disappointed. Upgraded to a good hose. Works fine..
Pros: Easy To Use, Features
Cons: Poor Quality Pressure Hose
Robert Recommends This Generac Product
Manufacturer Response
Brand Rep
Robert,
Thank you for providing us with your review of the 3100 psi residential grade pressure washer. We are sorry to learn of the damage incurred to your unit's hose. If you are interested in acquiring an applicable replacement, please contact us directly at 888-GENERAC (436-3722). When calling in, please be sure to have the serial number of your unit on hand.
more
Was this review helpful?
00
Daniel G.
Tomball, TX
Purchased from Pressure Washers Direct
Purchased 5/12/15
REVIEWED
JUN.
29
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Love It
I used my Generac 3100 pressure washer to clean the outside of my house, my wooden plank fence, the driveway and sidewalk. I was very happy with its performance and quality job it did cleaning.
Pros: Easy To Use, Fast, Quiet
Cons: Could Have Used A Shorter Wand For Cleaning The Wheel Wells And F, Rame Of My Truck
Daniel Recommends This Generac Product
Was this review helpful?
00
Mitch S.
Strongsville, OH
Purchased from Pressure Washers Direct
Purchased 5/29/15
REVIEWED
JUN.
23
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Nice
Easy and quick setup from box. Started on first pull with plenty of power. Good purchase for the price. Recommend it!
Mitch Recommends This Generac Product
Was this review helpful?
00
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